.brief {
    margin-top: 14px;
    height: 170px;
}

.brief ul {
    float: left;
    height: 100%;
    width: 234px;
    background-color: #5f5750;
}

.brief .brief-image {
    height: 100%;
}

.brief .brief-image a {
    display: block;
    float: left;
    margin-left: 14px;
    width: 316px;
    height: 100%;
    font-size: 0;
    transition: box-shadow .2s linear;
}

.brief .brief-image a:hover {
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.brief .brief-image img {
    width: 100%;
    height: 100%;
}

.brief ul li {
    position: relative;
    float: left;
    padding: 0 3px;
    box-sizing: border-box;
    width: 33.33%;
    height: 50%;
}

.brief .line-rightb:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 7px;
    width: 64px;
    height: 1px;
    background: #665e57;
}

.brief .line-rightb:after {
    content: '';
    position: absolute;
    top: 7px;
    right: 0;
    width: 1px;
    height: 70px;
    background: #665e57;
}

.brief .line-right:before {
    content: '';
    position: absolute;
    top: 7px;
    right: 0;
    width: 1px;
    height: 70px;
    background: #665e57;
}

.brief .line-bottom:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 7px;
    width: 64px;
    height: 1px;
    background: #665e57;
}

.brief ul li a {
    display: block;
    box-sizing: border-box;
    padding-top: 18px;
    text-align: center;
    width: 100%;
    height: 100%;
    color: rgba(255,255,255,0.7);
}

.brief ul li a .icon-mi {
    font-size: 24px;
}

.brief li a .brief-text {
    margin-top: 4px;
    font-size: 12px;
}